Improvement in hinges



E. KSSN.

Hinges.

Patentd Dec. 31, 1872.

ATENT AMASA C. KASSON, 0F MILWAUKEE, WISCONSIN.

IMPROVEMENT IN HINGES.

Specification formingpart of Letters Patent No. 134,383., dated December31 1872.

To all whom 'it 'may concern:

Be it known that I, AMASA C. KASsON, of Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented certain new and usefulImprovements in Hinges, of which the following is a full, clear, andexact description, which will enable others skilled in the art to whichmy invention appertains to make and use the same, reference being had tothe accompanying drawing forming a part of this specification, and inwhich- Figure l represents a side elevation of my improved hinge; Fig.2, a vertical central section of the same; and Fig. 3, a top viewthereof.

Like letters of reference indicate like parts.

The object of my invention is to improve the construction and operationof that class of hinges provided with removable pintles; and to that endit consists in providing the pintle with one or more grooves, and thewings of the hinge with an oil-cup arranged and constructed to receiveand extend below the pintle; it further consists, in connection with apintle and hinge so constructed', in .reaming out the perforations andoil-cup which receive the pintle, all of which will be hereinafter morefully described and set forth.

1n the drawing, A A' represents the win gs of the hinge. a is a knuckleon the wing A, and o a' are knuckles on the wing A. All the knuckles aremade to receive the pintle, as

shown in Fig. 2. The upper knuckle a isl reamed ont at the top of itsperforation so as to form a funnel for the reception of oil and removethe sharp `edge of the knuckle froml contact with the pintle, as shownat b. The,

ends of the perforation of the knuckle a arei also'reamed outso as toreadily receive the pintle, prevent its contact with sharp edges, andconduct the oil to the cup. cup in the lower knuckle a. This oil-cupreceives the lower end ofthe pintle and extends a considerable way belowit, so that the surplus oil will ente-r the cup instead of overilowingat the joints, and so that the oil therein will lubricate the pintle thecup is also roamed out at the top for the purposes mentioned, and alsoto increase its capacity. Bis a pintle wholly removable from the hinge,andK bis a groove in the pintle cut longitudinally therein. B is thepintle-cap, which is sutlii ciently large to cover the funnel made atthe upper end of the upper knuckle a. The knuckles are enlarged at theirbearin gs or points of contact with each other, as shown, and they arealso set upon the wings in such a manner that when the latter are foldedtogether they cannot slide upon each other in any direction, and so thatthe hinge may be used as a right and left hinge, as may be perceivedfrom reference to Figs. 1 and 3.

The advantage of the grooved pintle is that a larger quantity of oil isretained in the joint and distributed, and this advantage is increasedby reason of the oil-cup arranged to receive and extend below thepintle, the surplus oil flowing into the cup instead of overtlowing atthe joints. The oil in the cup is also fed to different parts of thejoint through the medium of the groove. By reaming out theknuckle-perforations and the top of the oil-cup the oil is not onlyreadily conducted to the cup and the capacity ot' the latter increased,but the pintle is readily inserted, and the sharp edges of the knucklesprevented from wearing shoulders upon thepintle, which knuckles so madehave heretofore prevented k the removal of the pintle, especially inthat class of pin tles known as slip-pintles. The broad butts orbearings of the knuckles lessen the strain upon the pint-le and preventthe hinges from being readily pried apart when the pintle is removed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A removable pint-le, provided with one or more grooves for thepurpose of lubricating the pintle and the knuckles or bearings, incombination with the wings of a hinge pro vided with an oil-cup, whichreceives and extends below the pintle, substantially as speciied.

. 2. A hinge, having its Wings constructed to receive a removablegrooved pintle, and provided with an oil-cup which receives and extendsbelow the pintle, when the perforations or cups in the knuckles areroamed out, substantially as and for the purpose described. AMASA C.KASSON.

Cnxs. H. Barmen, E. W. GLlr'rs. o

